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Leon evaluated the expression negative one-half(â€""4a â€"" 6) a2 for a = 8. negative one-half(-4(8) - 6) 82 negative one-half (-32-6) 82 negative one-half(-38) 82 negative one-half(-38) 16 â€""19 16 â€""3 analyze leon's work. check all that apply. leon should have subtracted inside the parentheses before he multiplied. the expression inside the parentheses should be simplified to â€""26 instead of â€""38. leon multiplied 8 by 2 when he should have raised 8 to a power of 2. the multiplication of two negative values in step 4 should result in a positive value. the correct answer should be 83.



Answer :

MrRoyal

The value of -1/2(-4a - 6) + a^2 when the value of a is a = 8 is 83

How to determine the solution to the expression?

The complete question is added as an attachment

The expression is given as:

-1/2(-4a - 6) + a^2

The value of a is

a = 8

So, we have:

-1/2(-4 * 8 - 6) + 8^2

Evaluate the product and the exponent

-1/2(-32 - 6) + 64

Evaluate the difference

-1/2(-38) + 64

Expand

19 + 64

Evaluate

83

Hence, the value of -1/2(-4a - 6) + a^2 when the value of a is a = 8 is 83

Read more about expressions at:

https://brainly.com/question/723406

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